Automatic valve



E. J. FORTIER.

I AUTOMATIC VALVE.

APPLICATION HLED JUNE 17. 1920. RENEWED FEB. I0, 1922.

1L Agxmgg, Patented Aug. 29, 192 2.

IIVZ EAITOR [J 7627??? WWJQ A TTOR/VEYS carries EDI/ 0ND J. FORTIER, 0F KANKAKEE, ILLINOIS.

AUTOMATIC VALVE.

iaaaoes.

Specification of Letters Patent.

Patented Aug. 29, 1922..

Application filed June 17, 1920, Serial No. 389,654. Renewed February 10, 1922. Serial No. 535,611.

To aZZ whom it may concern.

Be it known that l, EDMOND 5.. 'Fonrrnn, a citizen of the United States, and a resident of Kankakee, in the county of Kankakee and State of Illinois, have invented a new and useful Improvement in Automatic Valves, of which the following is a full, clear, and exact description.

My invention relates to improvements in automatic valves, andit consists in the combinations, constructions, and arrangements herein described and claimed.

An object of my invention is to provide an automatic valve for a drain-pipe or the like in a water system which will be opened by the suction created by the rush of waste water down the drain pipe, thereby preventing syphoning of the liquid seal from the trap in the water system without the necessity of providing a ventilating pipe.

A further object of my invention is to provide a device of the type described that will automatically close when the waste water has ceased to flow down the drain pipe and which will normally remain closed to prevent the pasage of gas from the drain pipe therethrough.

A further object of my invention is to provide a device of the type described that can be applied to a drain pipe such is ordinarily installed without the necemity of making extensive changes in the latter.

A further object of my invention is to provide a device of the type described that is relatively simple in construction and operation, not likely to get out of order easily and thoroughly practical commercially.

Other objects andadvantages will appear in the following specification, and the novel features of the invention will be particularly pointed out in the. appended claims.

My invention is illustrated in the accompanying drawings, forming part ofthis application, in which- Figure 1 is a vertical sectional view through the walls of a room showing the use and application of the automatic valve,

Figure 2 is a side elevation of the device partlybrolren away and in section,- showing the same applied to the drain pipe,

Figure 3 is a section along the line 33 of Figure 2,

Figure @1 is a section along the line 1- 1 of Figure 3,

Figure 5 is a view of a modified form of the device.

Referring nowto Figure 1, 1 denotes the floor of a room and 2, a wall thereof. A $111K, or the hire 3, havlng a basin 5 is supported lay a stanchion 4 inan ordinary manner. I drain p1pe 6 leads from the bowl. or basin 5 through a trap 7, a vertically disposed connecting pipe 8, an elbow 10,- and a horizontally disposed connecting pipe 9 to the drain or waste pipe 12. The junction of the horizontally disposed connecting pipe 9 with the waste pipe 12 is effected by means of a pipe fitting, such as a i" 11. The parts shown so far are ordinary in construction and form no part of my invention except in so far as they 00- operate with the parts to be described.

It has beennecessary prior to my invention to provide a ventilating pipe (not shown) which was connected to the pipe 13 and extended upwardly through the roof of a house. The ventilating pipe was neces sary, since the rush of the waste water down the waste pipe 12 creates a suction which would otherwise draw the water seal from the trap 7. Consequently, the foul and poisonous gases from the sewer would pass into the room to the detriment of the occupants of the house. When a ventilating pipe is provided, the atmospheric pressure would force air down the latter into the waste pipe 12 when suction was created by the flow of waste water therethrough and would prevent syphoning of the water seal from the trap 7. However, it has been necessary to provide numerous lengths of pipe to extend to the roof and as such pipe had no other function than that stated, the provision of a ventilating pipe entailed considerable cost. Furthermore, poisonous gases-from the waste pipe escaped throu h the ventilating pipe and contaminated the air, frequently spreading disease in the neighborhood.

In carrying out my invention, 1 secure the automatic valve to the waste pipe 12 adjacent the junction thereof with thepipe 9 by means of a short pipe 13 and an elbow 14-. The valve may be positioned in the interior of the-room between the trap 7 and the waste pipe 12, and when so positioned would be connected with the pipe 9, which would be tapped for the purpose.

The automatic valve comprises an outer casing- 15, which has its inner end screw threaded eXteriorly for engagement with the elbow 14. Within the outer casing 15,

I insert an inner casing 16 which tapers from its outer end to its inner end, as shown. The inner casing 16 has its inner end elevated by means of a lug 18 (see Fig. 4:) and is maintained in position by diametrically opposed side lugs 17 The outer end of the inner casing 16 is open and is provided with flange 30 which abuts against the outer end of the outer casing 15 when the inner casing has been inserted within the latter to the desired position. The inner end of the inner casing 16 is partly closed by a 'disk 19 which is centrally spaced from the walls thereof by means of lugs 20-, thereby providing passages 21 for air to pass from the inner casing to the waste pipe An inwardly extending tubular centr'ally disposed socket 22 is adapted to receive a bumper 23 "which is of any suitable material, such as cork, rubber, 'or the like. A central opening- 24C is provided throu h the disk 19 forconvenience in removing t e bumper 28 from itssocket A ball valve 25 is placed within the inner casing '16. A valve seat 28,'which may be formed of rubber or any other suitable material is clamped in place against the flanged end of the inner casing 16 by means of a cap '26, whichisscrewed on the outer casing 15. The valve seat "28 is formed with an opening 29 whose inner walls are curved to conform with the shape of the ball valve An opening :27 is provided in thecap 26 for admission of air. The ball valve -25 in its closed position may project slightly through the opening 27.. 'A plurality of openings 81 are pro'vided in 'thebottom wall-of the inner casing 16, as best seen in Fig. 3. These openings are covered by the ball valve 25 when the latter isin its closed position and provide ameans'for draining the inner cas ing 15 should any moisture accumulate therein. The outer end of the outer casing 15=is slightly higherthan the inner end and any moisture passing from the inner casing 16 through the openings 31 to theouter'casing 15 willvdrain into the waste pipe 12.

Referrin now to Figure 5, it will be noted that may provide an elbow member for covering the end-of the outer-casing 15 to prevent dust and the like being drawn into the inner casing 16. The elbow member-32 is securedto the outer-casing 15 in anysuitable manner as by Ineansof a pipe fitting33. Y i

From the foregoing description I of the various ;parts of the device, the operation thereof may be readily understood. Waste water passes from'the bowl or basin 5 into and down the wastebr drain pipe 12. The suction created by the rush ofwaste water together with the normal atmospheric pressure forces the ball valve 25 inwardly against the force ofgravity since the bottom wall ofthe inner casing 16 is inclined,

thereby permitting air to flow through the opening 29 into the inner casing 16. .Thence the air passes through the apertures 21 into and down the waste pipe 12, thereby relieving the suction on the water seal in the trap 7 and preventing the syphoning of the same therefrom. lVhen the flow of water down the waste pipe has ceasedand the inrush *of air has overcome the suction created, and filled the waste pip eythe ball valve 25' will roll down the incline into the position indicated by the dottedlines in Fig. 3 of the accompanying drawings. Admission of further air will be'preventeda Escape of ter system is being installed since it is not necessary to provide the ventila-ti-ngipipe as was formerly necessary. Furthermore, the health of the occupants of a building in which the water system is instal-ledis safeguarded, since a positive check is placed on the poisonous sewer gases which are prevented from passing *up the waste pipe 12. It is obvious that manymodifications and adaptations of the form ofthe device pictured in the drawings may be provided without departing from the spirit and scope of the invention as disclosed in the foregoing and outlined more particularly in the appended claims. I thereforeconsider such modifications and adaptations as my own. It will be'observed that a lug 34 extends inwardly from the'fla'nge 30 and is received within a slot in the outer end of the easing- 15, thereby insuring the proper positioning of the inner casing 16 within the lat-ter.

' I claim:

1. In a water system, :a waste pipe pro vided with a trap, and a normally closed automatic valve connected with said "waste pipe adjacent the junction of the'latter with said trap, and opened by suction created by the descent of waste matter through the waste pipe to admit air to the latter,-thereby overcoming the suction and preventing syphonlng of the water sealfrom the trap, said valve comprising a tubular outer cas ingconnected at one 'endwith said w'aste pipe, an inner casing inserted within said outer casing, said inner casing tapering inwardly from its outer end, having "its inner end ele'vated by a lug resting upon theibottom wall of said outer casing, and having apertures formedin its inner end, a circular valve seat held against the outerend of said inner casing,said valve seatbeingsprovided with a central opening, a ball valve disposed 'within the said inner casing,-said ball valve being normally movedpbyaforce of gravity to the outer end of said inner easing into position to close said opening in the valve seat, and means carried by said inner casing at its inner end to limit the movement of a ball valve in that direction.

2. In a Water system, a Waste pipe provided with a trap and a normally closed automatic valve operatively connected With said Waste pipe and positioned above the level of said trap, said valve comprising a substantially horizontal casing open at its outer end, a circular valve seat, means for EDMOND J. FORTIER. 

